Calling it “the ballad that’s gonna blow you away,” Good Morning America co-host Amy Robach introduced “Better Than You Left Me,” the current single by Mickey Guyton, who dropped by the morning show to perform Monday. (Watch the performance above.)

The radiant Guyton, decked out in a yellow sundress, was complimented by Robach on her big smile, with the host pointing out that the widespread critical acclaim she’s received and the record-breaking success of the single, are no doubt helping put the smile on the Texas native’s face.

Inspired by a difficult break-up, Guyton, one of Rolling Stone Country‘s Artists You Need to Know, penned “Better Than You Left Me” — with co-writers Jennifer Hanson, Jenn Schott and Nathan Chapman — during her first-ever Nashville writing session.

“This was one of those songs that just fell from the sky,” Guyton tells Rolling Stone Country. “I had my final fight with my ex-boyfriend — he was trying to come back into my life after we’d been going back and forth for about four years. He just couldn’t get it together, and I was telling him no. He said to me, ‘Don’t make me find someone else.’ I couldn’t believe he would say something like that! I was charged up from that conversation and went into my first co-write in Nashville…. I went through the whole relationship, and Jennifer Hanson said, ‘But you know what? You’re better than he left you.'”

Noting the dearth of African-American women in country music, Robach said to Guyton, “You’re changing that.” The singer replied that there have been a few throughout history, but country music could use more. “And more girls,” she added.

Guyton’s debut album is due this summer. She’ll hit the road in June with Brad Paisley.